BrianSigafoos

Convert AWS IAM credentials to AWS SMTP credentials

If you do, or want to, use AWS to deploy your apps, you will end up using AWS SES via SMTP when you're launching an app that sends out emails of any kind (user registrations, email notifications, etc). For example, I have used this configuration on various Ruby on Rails apps, however, it is just basic SMTP configurations and crosses over to any framework that supports SMTP sendmail.

There are two ways to go about this:

• EASY WAY: Create an SMTP user via AWS SES [http://docs.aws.amazon.com/ses/latest/DeveloperGuide/smtp-credentials.html#smtp-credentials-console]
• NOT SO EASY WAY: Create an SMTP password for an existing IAM user [^^ Same link scroll down]

Luckily, you found this MD file and the NOT SO EASY WAY is suddenly copy-pasta... sudo yum....

BrianSigafoos

Development

Open terminal as X86, then run webpack:

arch -x86_64 zsh
yarn install && yarn webpack

Setup

BrianSigafoos

Kubernetes Security

NSA/CISA Kubernetes Hardening Guidance

A summary of the key recommendations from each section are:

• Kubernetes Pod security
  • Use containers built to run applications as non-root users
  • Where possible, run containers with immutable file systems
• Scan container images for possible vulnerabilities or misconfigurations

BrianSigafoos

# in test_helper.rb (for example)
def mock_env(partial_env_hash)
  old_env = ENV.to_hash
  ENV.update partial_env_hash
  begin
    yield
  ensure
    ENV.replace old_env
  end
end

BrianSigafoos

Kubernetes Oh My Zsh aliases

# This command is used a LOT both below and in daily life
alias k=kubectl

# Execute a kubectl command against all namespaces
alias kca='_kca(){ kubectl "$@" --all-namespaces;  unset -f _kca; }; _kca'

# Apply a YML file

BrianSigafoos

# frozen_string_literal: true

class ApplicationComponent < ViewComponent::Base
  private

  # Reference: https://www.youtube.com/watch?v=YVYRus_2KZM&t=302s
  def fetch_or_fallback(allowed_values, given_value, fallback)
    if allowed_values.include?(given_value)
      given_value
    else

BrianSigafoos

[
  {
    "key": "cmd+q",
    "command": "-workbench.action.quit",
  },
  {
    "key": "alt+cmd+.",
    "command": "workbench.action.terminal.focusAtIndex1"
  },
  {

BrianSigafoos

Stripe CLI

• Install the Stripe CLI with: brew install stripe/stripe-cli/stripe
• Login to our Stripe account: stripe login
• Listen for Stripe webhooks using Latest API version and forward to:
  • yarn stripe:listen, which does:
  • stripe listen --latest --forward-to http://localhost:3000/webhook_events/stripe
• Replay events locally with stripe trigger <event type>:
• stripe trigger checkout.session.completed

BrianSigafoos

SELECT tablename FROM pg_tables WHERE schemaname = 'public';
-- Move out of public
DO
$$
DECLARE
    row record;
BEGIN
    FOR row IN SELECT tablename FROM pg_tables WHERE schemaname = 'public' -- and other conditions, if needed
    LOOP
        EXECUTE 'ALTER TABLE public.' || quote_ident(row.tablename) || ' SET SCHEMA valimail_defend_stage_reporting_20181127_super;';

BrianSigafoos

SELECT
    t.schemaname,
    t.tablename,
    indexname,
    c.reltuples AS num_rows,
    pg_size_pretty(pg_relation_size(quote_ident(t.schemaname)::text || '.' || quote_ident(t.tablename)::text)) AS table_size,
    pg_size_pretty(pg_relation_size(quote_ident(t.schemaname)::text || '.' || quote_ident(indexrelname)::text)) AS index_size,
    pg_relation_size(quote_ident(t.schemaname)::text || '.' || quote_ident(t.tablename)::text) AS table_size_raw,
    pg_relation_size(quote_ident(t.schemaname)::text || '.' || quote_ident(indexrelname)::text) AS index_size_raw,
    CASE WHEN indisunique THEN 'Y'